My one mild complaint is the seemingly excessive safety measures taken when you close the door. The alarm is, well, alarming. And the flashing lights tend to frighten people who aren't expecting them. I've seen Craftsman smart garages that just close like normal. I'd really prefer to not have a small light show announcing my door is closing every time.
Repair Sagging Garage Doors – As doors and homes age, they can shift and move and sometimes this results in a garage door that needs to be realigned or reinforced. We will send a technician to your home to adjust the doors and to inspect the entire opening to make sure the door isn’t damaged. Once we understand the problem, we will fix the needed parts and make any adjustments to the door.
Now check the springs. There will be just one on a single-car garage, two on a two-car garage. Roll-up doors are operated by torsion springs, controlled by cables on pulleys. Two-car models can be adjusted by pulling the cable further through the plate above the door, then knotting the end to hold the newly established tension. One-car roll-up door springs should only be adjusted by a professional, as there is such a great amount of tension on the one spring that you could be injured when trying to adjust it yourself. Swing-up door springs are hooked on each side of the door into special notches or holes. To adjust the tension on these springs, simply move the spring hooks to the next notch.
Now check the springs. There will be just one on a single-car garage, two on a two-car garage. Roll-up doors are operated by torsion springs, controlled by cables on pulleys. Two-car models can be adjusted by pulling the cable further through the plate above the door, then knotting the end to hold the newly established tension. One-car roll-up door springs should only be adjusted by a professional, as there is such a great amount of tension on the one spring that you could be injured when trying to adjust it yourself. Swing-up door springs are hooked on each side of the door into special notches or holes. To adjust the tension on these springs, simply move the spring hooks to the next notch.

Garage Door Opener Co

Containment cables. When old extension springs break, the springs and cables become heavy whips that damage cars and even injure people. To solve the whipping problem, manufacturers now offer containment cables that run through the center of side-mounted extension springs. If you have extension springs and don’t plan to replace your door, make sure the springs have these containment cables, or have a professional install them.